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# Unit 1: Foundations

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## About this unit

This topic isn't algebra, but it is a survey of all of the most important pre-algebra skills you need to really digest algebra. These skills also tend to be pretty important in life in general!

### Learn

### Practice

- Negative numbers on the number lineGet 5 of 7 questions to level up!
- Adding negative numbersGet 5 of 7 questions to level up!
- Subtracting negative numbersGet 5 of 7 questions to level up!
- Multiplying negative numbersGet 3 of 4 questions to level up!
- Dividing negative numbersGet 3 of 4 questions to level up!

### Learn

### Practice

- Finding absolute valuesGet 5 of 7 questions to level up!
- Interpreting absolute valueGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 560 Mastery points

### Learn

### Practice

- Meaning of exponentsGet 3 of 4 questions to level up!
- Powers of whole numbersGet 3 of 4 questions to level up!
- Variable expressions with exponentsGet 3 of 4 questions to level up!

### Learn

### Practice

- Square rootsGet 5 of 7 questions to level up!
- Simplify square rootsGet 3 of 4 questions to level up!
- Simplify square roots (variables)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Order of operationsGet 3 of 4 questions to level up!
- Order of operations with negative numbersGet 5 of 7 questions to level up!

### Learn

### Practice

- Adding & subtracting negative fractionsGet 5 of 7 questions to level up!
- Multiplying positive and negative fractionsGet 3 of 4 questions to level up!
- Dividing positive and negative fractionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Intro to percentsGet 5 of 7 questions to level up!
- Percents from fraction modelsGet 3 of 4 questions to level up!
- Relate fractions, decimals, and percentsGet 3 of 4 questions to level up!
- Converting fractions to decimalsGet 3 of 4 questions to level up!
- Write decimals as fractionsGet 5 of 7 questions to level up!
- Finding percentsGet 5 of 7 questions to level up!
- Percent word problemsGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 560 Mastery points

### Learn

### Practice

- Adding decimals: thousandthsGet 5 of 7 questions to level up!
- Subtracting decimals: thousandthsGet 5 of 7 questions to level up!
- Decimal multiplication place valueGet 3 of 4 questions to level up!
- Dividing decimals: hundredthsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

### Practice

- Area of trianglesGet 5 of 7 questions to level up!

### Learn

### Practice

- Radius and diameterGet 5 of 7 questions to level up!
- Area of a circleGet 5 of 7 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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Level up on all the skills in this unit and collect up to 3,200 Mastery points!